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CA Patent: CA-15,866
Gas governors
Patentees:
George Smith Woodruff (exact or similar names) - Grand Rapids, MI
John C. Fisks (exact or similar names) - Grand Rapids, MI

USPTO Classifications:

Tool Categories:
propulsion and energy : steam engines : steam engine governors

Assignees:
None

Manufacturer:
George S. Woodruff - Toronto, ON Canada

Witnesses:
Unknown

Patent Dates:
Granted: Nov. 27, 1882

Patent Pictures:
CIPO Data
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Geo. S. Woodruff

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